All Developer Tools

Instantly decode JSON Web Tokens (JWT) to view their header and payload. Processes entirely in-memory for absolute security.

Instantly generate and sign JSON Web Tokens (JWT) using a JSON payload and secret key. Fast, secure, and processed entirely locally.

Generate secure SHA-256 cryptographic hashes from text strings. Fast, free, and developer-friendly hash calculator.

Instantly generate an MD5 checksum hash from any text string. A lightning-fast developer utility.

Generate highly secure, cryptographically random 256-bit and 512-bit secret keys for HS256 and HS512 JSON Web Token signing.

Instantly generate mathematically random, RFC 4122 compliant UUID v4 strings for database keys and unique identifiers.

Generate high-entropy, mathematically secure passwords resistant to dictionary and brute-force attacks. 100% private and unlogged.

Clean up, indent, and format messy or minified HTML code instantly. A fast, free utility for web developers.

Instantly generate time-sortable ULIDs (Universally Unique Lexicographically Sortable Identifiers) for modern database architectures.

Generate beautiful, perfectly scaled 1200x630 Open Graph images for SEO sharing using a simple JSON configuration.

Instantly generate secure 2048-bit RSA public and private key pairs for encryption and digital signatures.

Quickly translate standard text or strings into hexadecimal format. A handy utility for developers and engineers.

Instantly decode hexadecimal strings back into readable plain text. Fast, secure, and processed entirely locally.

Deconstruct complex URLs into their individual components, including protocol, host, path, and query parameters.

Convert any text or title into a clean, SEO-friendly, and URL-safe slug instantly.

Instantly extract plain text from your PDF documents. 100% private, secure, and processed in your browser memory.

Extract raw, plain text from Microsoft Word (.docx) files instantly. Secure, fast, and completely private.

Instantly extract plain text from DOCX, PPTX, XLSX, ODT, ODP, ODS, PDF, and RTF documents. Fast, secure, and private.

Instantly convert plain text into a downloadable PDF document. Fast, free, and completely secure.

Quickly convert your plain text into a formatted Microsoft Word (.docx) document.

Instantly convert comma-separated values (CSV) into a structured JSON array. Perfect for developers and data analysis.

Convert JSON arrays into flat CSV spreadsheet data instantly.

Instantly convert Microsoft Excel spreadsheets (.xlsx) into a structured JSON array. Secure and processed entirely in your browser.

Convert JSON arrays into flat Microsoft Excel (.xlsx) spreadsheet files instantly.

Quickly generate a clean, professional Curriculum Vitae (Resume) in PDF format by filling out simple fields.

Easily combine multiple PDF files into a single document instantly.

Reduce your PDF file size while maintaining readability. Fast and secure.

Extract the first page of your PDF into a high-quality PNG image.

Convert your raw HTML code into a downloadable, beautifully formatted Microsoft Word (.docx) document.

Secure your PDF file with an encrypted password. Keep your documents private.

Remove password protection and encryption restrictions from your PDF file.

Instantly convert PNG images to WebP format for superior web compression. Processed entirely in memory for absolute privacy.

Easily convert WebP images back into widely compatible PNG files. Fast, free, and completely private image converter.

Optimize your heavy JPEG photographs by converting them to the next-gen WebP format. Reduce file size and improve Core Web Vitals.

Quickly and securely convert WebP images to widely supported JPEG files. Free, private, and processes instantly in-memory.

Convert PNG images to standard JPEG format to save space. Fast, private, and processed securely in your browser.

Instantly convert your color images to beautiful black and white (grayscale). Processed securely in-memory.

Instantly convert scalable vector SVGs into universally compatible, high-quality PNG images. Processes securely in-memory.

Intelligently compress your images to the smallest possible file size without visible quality loss. Free, fast, and completely secure.

Instantly apply a smooth Gaussian blur to your photos. Perfect for creating abstract backgrounds or softening images.

Invert the colors of any image instantly to create a cool photographic negative effect. Secure and processed in your browser.

Automatically enhance the contrast of your photos. Fix dark, washed-out, or low-contrast images instantly.

Instantly convert any JPG, PNG, or WebP image into a standard 32x32 favicon.ico file for your website.

Instantly generate high-quality QR codes from URLs or text. Fast, free, and secure.

Scan and read QR codes directly from uploaded images. 100% private, processed in-memory.

Analyze the meta tags and Open Graph data of any URL to see how it appears on Google, Twitter, Facebook, and LinkedIn.

Quickly generate a basic sitemap.xml for your website to submit to Google Search Console and improve indexing.

Check the keyword density of your text to avoid keyword stuffing and optimize your content for search engines.

Scan a webpage for images missing the alt attribute. Improve your website accessibility and image SEO.

Easily generate a valid robots.txt file to control how search engine crawlers interact with your website.

Instantly format, validate, and beautify your JSON data. Fast, secure, and built for developers.

Compress your JSON data by removing unnecessary whitespace, line breaks, and comments. Optimize payloads for production APIs.

Quickly and securely encode any plain text or string into Base64 format. A fast, developer-ready utility.

Instantly decode Base64 strings back to readable plain text. Fast, secure, and processed entirely locally.

Safely encode text and parameters for URLs. Fast, secure percent-encoding utility for web developers.

Quickly decode URL-encoded (percent-encoded) strings back into readable text.

Translate plain text into binary code (1s and 0s) instantly. Fast, free, and completely private.

Decode binary code (1s and 0s) back into readable plain text instantly.

Encrypt your sensitive text using military-grade AES-256-GCM encryption. Processes entirely in your browser.

Decrypt AES-256-GCM encrypted payloads securely and instantly.

Instantly convert your Markdown text into clean, standard HTML code. Fast, secure, and processed locally.

Quickly convert raw HTML code back into clean, readable Markdown syntax. Secure and processed instantly.

Instantly generate creative and random usernames and nicknames for gaming, social media, or testing.

Generate completely random, realistic-looking fake addresses for testing, mockups, or QA.

Generate fully-featured mock user profiles including names, emails, passwords, and addresses in JSON format for testing.

Instantly convert XML documents into structured JSON data. Fast, secure, and processed entirely locally.

Instantly convert JSON objects into beautifully formatted XML documents. Fast, secure, and developer-friendly.

Instantly shorten any long URL. Create clean, shareable links that never expire.

Quickly validate Brazilian CPF and CNPJ documents. Check if the digits are mathematically correct and formatted properly.

Check if a given Brazilian phone or cellphone number is valid, including DDD and the 9-digit format.

Check if an email address has a valid format and follows standard syntax rules.

Validate credit card numbers safely using the mathematical Luhn algorithm. We do not store or transmit your data.

Check if a Brazilian postal code (CEP) has a valid format.

Find the complete street address, neighborhood, city, and state for any Brazilian CEP instantly.

Instantly convert any video file (WebM, AVI, MOV, MKV) to a universally compatible MP4 format. Processed securely.

Optimize your videos for the web by converting them to the open-source WebM format. High compression and great quality.

Extract the audio track from any video file and save it as a high-quality MP3. Fast, free, and completely private.

Reduce heavy video file sizes significantly without visible quality loss. Free, private, and optimized for sharing.

Turn your favorite video clips into smooth, high-quality animated GIFs. Shareable, looping, and fully secure.

Instantly generate a temporary webhook URL to test your APIs and payloads. Expires and self-destructs after 5 minutes.